CN2425843Y - Brake disc automatic positioning clamp for bicycle - Google Patents

Abstract

The utility model relates to an automatic positioning clamping device for brake discs of a bicycle disc brake, which comprises a clamp. A C-shaped groove is formed on one side of the clamp, and both sides of the C-shaped groove are respectively provided with a brake disc. A ball seat provided with a rotary step surface is arranged in the clamp, and a push rod which passes through the ball seat is connected with a crank. Balls are arranged between the ball seat and the push rod, and an aligning slice is arranged between the inner side end of the push rod and the brake disc. The aligning slice is bulged with a circular-arc-shaped adjusting block, the inner side end of the push rod is provided with an arc-shaped groove, and the adjusting block is assembled on the arc-shaped groove of the push rod. The utility model can automatically adjust the position of the brake disc so as to ensure the braking effect and avoid the improper abrasion of the brake disc.

Description

The brake facing self-orientation holding device of bicycle disc brakes

The utility model relates to a kind of disc brakes device of bicycle, particularly relates to a kind of brake facing self-orientation holding device with bicycle disc brakes of good braking effect.

Because disc brake has the good and fast speed characteristic of braking effect, therefore adopted by general motion type bicycle, with mechanical disc brake apparatus is example, as Fig. 1, shown in 2, the device of bicycle disc brakes in the past comprises a holder housing 1, two Working-Clip seats 2, one push rod 3 and an eccentric compressive bar 4, these holder housing 1 one sides offer a C shape groove 101, the opposite side end face then is formed with a cable wire fixed plate 102 that is the warpage shape, and these holder housing 1 leading portion both sides extend outwardly respectively and are formed with a supporting blade 103 of tool circular hole, this holder housing 1 front side is formed with an opening 104, offer a push rod groove 105 that leads to this C shape groove 101 inwardly in opening 104 inner ends, this two Working-Clip seat 2 is made up of brake (lining) sheet 201 and a metal bar 202 respectively, each Working-Clip seat 2 laterally slips into binding by the shallow slot of these C shape groove 101 both sides respectively, and 202 of Working-Clip seat 2 metal bars corresponding to this push rod groove 105 are terminal affixed with this push rod 3, big or small three rank during this push rod 3 is, be concaved with an arc fluting 302 on the head end 301 of scala media, the rear 303 on little rank then is arranged with a returning spring 304, when inserting this push rod groove 105 with this push rod 3, the ability of these push rod 3 homings can be provided, this eccentric compressive bar 4 has provided an eccentric orfice 401 vertically at a cylinder, can laterally be hubbed at 103 of two supporting blades, and its extrados 402 is compressed on the arc fluting 302 of push rod 3 head ends 301, and, the torque arm 403 that extended outwardly of these eccentric compressive bar 4 external side ends, can screw 5 packings and with 6 terminal connections of brake cable.When the rider draws the torque arm 403 of pull brake cable 6 and this eccentric compressive bar 4 of interlock, rotatable eccentric compressive bar 4 pushes away these push rod 3 generation longitudinal travels of pulling with the effect of eccentric cambered surface, make with push rod 3 terminal affixed brake facings 201 and push disc 7 to and the clamping packing, and reach the effect of brake.

But the device of bicycle disc brakes in the past still has following shortcoming:

One, because terminal affixed with this push rod 3 corresponding to the Working-Clip seat 2 metal bars 202 of this push rod groove 105, and this brake facing 201 pastes on metal bar 202 again, when brake, this push rod 3 directly promotes brake facing 201 and contacts with disc 7, form friction stopper power, because when this disc 7 is installed, be not and be parallel to each other with brake facing 201, therefore may cause brake facing 201 and the disc 7 can't full face contact, make brake facing 201 produce local friction's phenomenon, so, not only braking effect is relatively poor, and makes brake facing 201 that localized wear takes place easily.

Though two, the device of bicycle disc brakes in the past can utilize the offset of eccentric push rod 4 to be used as push rod 3 displacement stroke, it is comparatively mild that but eccentric push rod 4 is subject to eccentric radian, make that the displacement (speed) of push rod 3 in unit times is fixing, therefore for some car type of specializing in mountain-climbing, performance or sports usefulness, can not reach user demand.

Three, the type of drive of the device of bicycle disc brakes in the past, be to compress by the extrados 402 of this eccentric compressive bar 4 and the arc fluting 302 of push rod 3, be the contact friction that belongs to face between the two, the rider is for reaching braking action, not only to overcome the elastic force of this returning spring 304, also to overcome the friction drag between push rod 3 and eccentric compressive bar 4 contact surfaces simultaneously, just can order about this eccentric compressive bar 4 and produce turn, reach braking effect, therefore, the rider must apply bigger strength and draw the brake crank of pulling, and comparatively requires great effort in the use and inconvenience.

The purpose of this utility model is to provide a kind of even cramping brake disc of brake facing that makes, to guarantee braking effect and to prevent the brake facing self-orientation holding device of the improper worn-down bicycle of brake facing disc brakes.

For achieving the above object, the utility model provides a kind of brake facing self-orientation holding device of bicycle disc brakes, comprise clamp, this clamp one side is formed with a C connected in star, these C connected in star both sides respectively are provided with a brake facing, one brake disc, one side is contained between two brake facings, be provided with a ball base in these clamp, this ball base has the terrace that revolves of Different Slope variation, and there is a push rod to pass this ball base and protrudes out outside the clamp, and connect and establish a crank, between this ball base and push rod, be provided with several balls, this push rod medial extremity and wherein brake facing binding is characterized in that:

Be provided with a para position plate between this push rod medial extremity and brake facing, the side that this para position plate and push rod link, convex with a circular-arc adjustment piece in centre, push rod medial extremity central authorities cooperate and are formed with an arc groove, and the adjustment piece of this para position plate is to be assembled on the arc groove of this push rod with can being adjusted at angle on the push rod.

The brake facing self-orientation holding device of described bicycle disc brakes is characterized in that:

The terrace that revolves of this ball base evenly is laid with several spin slots, and this each spin slot has the inclination cambered surface that changes towards in the same way, and this ball is contained in the cooresponding spin slot.

The brake facing self-orientation holding device of described bicycle disc brakes is characterized in that:

This para position plate one side is provided with several strong magnets, and this brake facing is installed on the irony plate, and this brake facing is attracted by strong magnets and is combined on the para position plate.

The brake facing self-orientation holding device of bicycle disc brakes of the present utility model, comprise clamp, this clamp one side is formed with a C connected in star, these C connected in star both sides respectively are provided with a brake facing, and a side of a brake disc is contained between two brake facings, be provided with a ball base in these clamp, this ball base has the terrace that revolves of Different Slope variation, one push rod passes this ball base and protrudes out outside the clamp Hou and connects and establish a crank, between this ball base and push rod and be provided with several balls, this push rod medial extremity then links with a brake facing wherein, this push rod can utilize ball oppositely to push against the revolving terrace of ball base and produce longitudinal travel, make the brake facing cramping brake disc that is linked to the push rod medial extremity, to produce braking effect, be provided with a para position plate between this push rod medial extremity and brake facing, the side central authorities that this para position plate and push rod link convex with a circular-arc adjustment piece, and be formed with an arc groove in the cooperation of push rod medial extremity central authorities, piece is adjusted in this para position plate utilization and arc groove is adjusted the angle of this para position plate on push rod, make brake facing automatic compensation position, and concora crush is on brake disc, make that this brake facing and brake disc can full face contacts, and reach preferable braking effect.

Be elaborated below by Cui embodiment and accompanying drawing brake facing self-orientation holding device to Bicycle dished brake of the present utility model, in the accompanying drawing:

Fig. 1 is the exploded perspective view of the device of bicycle disc brakes in the past.

Fig. 2 is that the action scheme drawing is analysed and observe in the combination of the device of bicycle disc brakes in the past.

Fig. 3 is the exploded perspective scheme drawing of the utility model preferred embodiment.

Fig. 4 is the perspective exploded view of push rod in the utility model preferred embodiment, para position plate and another angle of brake facing.

Fig. 5 is the combination cross-sectional schematic of the utility model preferred embodiment.

Fig. 6 is that the utility model preferred embodiment normal condition is used scheme drawing.

Fig. 7 is the use scheme drawing that the utility model preferred embodiment para position plate is adjusted the brake facing angle.

As Fig. 3, Fig. 4, shown in Figure 5, the brake facing self-orientation holding device of bicycle disc brakes of the present utility model, comprise clamp 10, a ball base 20, three balls 30, a push rod 40, a para position plate 50, one group of brake facing (lining) 60 and crank 70, and a brake disc 80 is placed in 60 of this group brake facings.

These clamp 10 are to be engaged with 13 lockings of two bolts by first, second housing 11,12 to form, and these clamp 10 belows are formed with downward opening C connected in star 14, these first housing, 11 inside form the accommodation space 111 that front end is open shape, and the other end then is provided with a perforation 112.

This ball base 20 is in the form of annular discs and be located in this accommodation space 111, these ball base 20 1 sides are formed with one and revolve terrace 21, this revolves terrace 21 and evenly is laid with three spin slots 22, these spin slots 22 respectively have the inclination cambered surface that changes towards in the same way, these spin slot 22 degree of depth are shoaled to the other end gradually from an end, and these ball base 20 central authorities are provided with an axis hole 23 coaxial with the perforation 112 of this first housing 11.

These balls 30 install respectively in each spin slot 22 of this ball base 20.

The front end of this push rod 40 is formed with shoulder 41, and axially extend one and connect post 42 towards the other end, make this connect post 42 and placed this axis hole 23, perforation 112 and protrude out outside the clamp 10 in regular turn, and be nested with a returning spring 43, spin slot 22 that should ball base 20 41 pairs of these push rod 40 shoulders is provided with three shrinkage pools 44, with 44 of the spin slot 22 that these balls 30 is interposed in ball base 20 and shrinkage pools, and another distolateral central authorities of these push rod 40 shoulders 41 are formed with an arc groove 45.

This para position plate 50 comprises circular lamellar body 51 that should push rod 40 shoulders 41, and arc groove 45 places that should push rod 40 are convexed with a circular-arc adjustment piece 52 in central authorities, this para position plate 50 is to utilize a screw rod 53 pivots knot in the arc groove 45 of these push rod 40 shoulders 41, but and the angle of these para position plate 50 automatic compensations on push rod 40, in addition, these para position plate 50 1 sides are provided with two strong magnets 54.

This group brake facing 60 is C connected in star 14 both sides that are assembled in clamp 10, and wherein the brake facing 60 of a side is attracted by strong magnets 54, and it is distolateral to be flattened on this para position plate 50.

These crank 70 lockings connect post 42 at this push rod 40 and protrude from the outer distolateral of clamp 10, can rotate this push rod 40.

As shown in Figure 6, when brake, drive push rod 40 by this crank 70 of operation and rotate, these push rod 40 shoulders 41 are because of the effect of ball 30 with ball base 20 spin slots 22, and push rod 40 is moving to brake disc 80 1 thrusters, make brake facing 60 touch brake disc 80, reach the purpose of brake.Even this brake disc 80 is because of making or produce during assembling error, and can not with brake facing 60 keeping parallelisms, but when brake, as shown in Figure 7, cooperate with the arc groove 45 of push rod 40 by these para position plate 50 circular-arc adjustment pieces 52, can make the angle of para position plate 50 automatic compensations on push rod 40, these brake facings 60 are contacted with brake disc 80 automatic keeping parallelism faces, can improve braking effect, prevent the brake inefficacy.

Claims (3)

1, a kind of brake facing self-orientation holding device of bicycle disc brakes, comprise clamp, this clamp one side is formed with a C connected in star, these C connected in star both sides respectively are provided with a brake facing, one brake disc, one side is contained between two brake facings, be provided with a ball base in these clamp, this ball base has the terrace that revolves of Different Slope variation, and there is a push rod to pass this ball base and protrudes out outside the clamp, and connect and establish a crank, be provided with several balls between this ball base and push rod, this push rod medial extremity and wherein brake facing binding is characterized in that:

Be provided with a para position plate between this push rod medial extremity and brake facing, the side that this para position plate and push rod link, convex with a circular-arc adjustment piece in centre, push rod medial extremity central authorities cooperate and are formed with an arc groove, and the adjustment piece of this para position plate is to be assembled on the arc groove of this push rod with can being adjusted at angle on the push rod.

2, the brake facing self-orientation holding device of bicycle disc brakes as claimed in claim 1 is characterized in that:

The terrace that revolves of this ball base evenly is laid with several spin slots, and this each spin slot has the inclination cambered surface that changes towards in the same way, and this ball is contained in the cooresponding spin slot.

3, the brake facing self-orientation holding device of bicycle disc brakes as claimed in claim 1 is characterized in that:

This para position plate one side is provided with several strong magnets, and this brake facing is installed on the irony plate, and this brake facing is attracted by strong magnets and is combined on the para position plate.

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